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I agree with Chris. The strength of semantic web is in inference. However, the deeper the inference the harder for our users to find the right result. IMHO, in order for semantic inference to be effective, it needs to be combined with search metrics and dynamic
result ranking (i.e. search relevance).
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<div>Thanks</div>
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<div>Thomas<br>
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<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="background-color: rgba(255, 255, 255, 0);">Thomas Huang</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="background-color: rgba(255, 255, 255, 0);">Group Supervisor</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="font-size: 13pt;">Data Product Generation Software </span></p>
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<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="background-color: rgba(255, 255, 255, 0);">Jet Propulsion Laboratory, California Institute of Technology</span></p>
<p style="margin: 0px; font-stretch: normal; line-height: normal;"><span style="text-decoration: underline; direction: ltr; unicode-bidi: embed; background-color: rgba(255, 255, 255, 0);"><a href="tel:(818)%20354-2747">(818) 354-2747</a></span></p>
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<blockquote type="cite">On May 28, 2021, at 12:44 PM, Lynnes, Christopher S. (GSFC-5860) via esip-semanticweb <esip-semanticweb@lists.esipfed.org> wrote:<br>
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">I can’t explain the overall SWEET non-uptake by data centers, but I can explain why I have usually ended up with something else (after trying SWEET) in Search interface use cases, such as in Usage-Based
Discovery, If the community doesn’t mind a couple heretical statements…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Andale Mono""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Andale Mono"">TL;DR: While SWEET may be a logical ontology from a knowledge organization standpoint, it does not fit well when you turn it around to use in a data search User Experience.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">Heresy #1: Currently, I build data system components by starting with the desired user experience and working downward to the application and the database+schema. The database/schema is whatever
it needs to be to help the application satisfy the UX. (In 1991, I went in the opposite dierction, starting by modeling the data, building a UI on top of that. Results were, um, uneven.)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">It is more helpful for the UX to use terminology that “makes sense” to the end user, and in the context of the particular use case.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">Meresy #2: Multi-level hierarchies (SWEET, GCMD, or ANZSRC) are problematic in this sense: if you just slice through at one level to present to the user, some categories are too coarse and others
are too fine in different places in order to work in a Search tool. To “make sense” to the user, we end up picking one term from the 3<sup>rd</sup> level, another from the 2<sup>nd</sup> level, another from the 4<sup>th</sup>...ugh.
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">Alternatively, if we throw up our hands and make the user navigate the hiearchy on their own, the user has to guess at which branch to follow to find the thing they really want. If looking for “fire”,
the user needs to infer that it is somewhere under phenReaction (Reaction Phenomena). Which an expert might recognize as the right place to find it, but not a regular person. (This is even more problematic with GCMD where very similar low-level terms are found
in completely different branches.)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Andale Mono"">I don’t mean to criticize SWEET, just to point out why it is hard to utilize in certain use cases. YMMV.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Monaco;color:black">Christopher Lynnes NASA/GSFC mobile: 410-231-4573<br>
“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” A. de St. Exupery</span><span style="font-family:"Andale Mono""><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in">On 5/28/21, 14:28, "Mark Parsons" <<a href="mailto:parsonsm.work@icloud.com">parsonsm.work@icloud.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Thanks SJ and Chris. Definitely some refinement needed if we do submit somewhere. I’ve been amazed at folks's ability to dig up ancient gray lit. :-)<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">BTW the human dimensions keywords are still there and even have been expanded (should probably note that). At the time of IPY most social scientists I talked to didn’t find them very helpful or in good alignment
with what they were already using.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Also I’d welcome any feedback on why SWEET wasn’t broadly adopted. My impression is that at first, most data centers were not really ready to think about ontologies and then when Rob died, they lost further momentum.
That does appear to be changing as at least elements of SWEET are being added to ENVO and the OBO Foundry. Y’all probably know more.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">cheers,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">-m. <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">On May 28, 2021, at 12:20 PM, Siri Jodha Khalsa via esip-semanticweb <<a href="mailto:esip-semanticweb@lists.esipfed.org">esip-semanticweb@lists.esipfed.org</a>> wrote:<o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">Nice. Thanks, Chris, for digging out this detailed history. - sjs</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-size:9.0pt;font-family:Helvetica;color:black">On 5/28/21 7:17 PM, Lynnes, Christopher S. (GSFC-5860) wrote:</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="color:black">For the origin story of GCMD and its roots in the NASA Master Directory (ca. 1988) and IDN (ca. 1990), see:<span class="apple-converted-space"> </span><a href="https://urldefense.us/v3/__https://gcc02.safelinks.protection.outlook.com/?url=https*3A*2F*2Fidn.ceos.org*2Fnewsletter*2Fnewsletter15.html&data=04*7C01*7Cchristopher.s.lynnes*40nasa.gov*7C8c67afa8c03f4d05926e08d922067294*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C637578233358937034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=EHdrLl*2FSDrf0h8HNd7iZcQxrCXLUxISHr6yLJx1*2B1lM*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!PvBDto6Hs4WbVuu7!ZG_ls4KcStOMTL-Tl4THD3a_ohLG7_2mVFFRPqwtOrnVidXu8Xp5qlfIjnwLuu82_U3F67Y$">https://idn.ceos.org/newsletter/newsletter15.html</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-size:9.0pt;font-family:Monaco;color:black">Christopher Lynnes NASA/GSFC mobile: 410-231-4573<br>
“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” A. de St. Exupery</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="color:black">On 5/28/21, 12:13, "esip-semanticweb on behalf of Siri Jodha Khalsa via esip-semanticweb" <<a href="mailto:esip-semanticweb-bounces@lists.esipfed.org">esip-semanticweb-bounces@lists.esipfed.org</a><span class="apple-converted-space"> </span>on
behalf of<span class="apple-converted-space"> </span><a href="mailto:esip-semanticweb@lists.esipfed.org">esip-semanticweb@lists.esipfed.org</a>> wrote:</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">Hello Mark, Ruth and Øystein -</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">Thanks for a well-reasoned, somewhat provocative essay. It deserves to get widely read. An appropriate journal doesn't leap to mind, but I suspect others will have suggestions.</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">I was working in the EOSDIS Core System Science Office before launch of the first EOS satellite and from what I recall GCMD and EOSDIS began and evolved somewhat in parallel. The motivation for
GCMD was to "facilitate interactions among science data cataloging systems" and it was the Committee on Earth Observing Satellites Data Working Group (CEOS-DWG) that sponsored the initial implementation of the International Directory Network (IDN) which became
the GCMD. I may not have the exact details correct, but the statement "The GCMD was developed to support the launch of ... EOS." is probably incorrect.</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">Also of interest, and perhaps worth noting, is that initially the GCMD had "Socioeconomic" keywords contributed by CIESIN. These included, e.g.</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="font-family:"Courier New";color:black">Population Dynamics > Demographic Characteristics > ethnicity</span><span style="color:black"><br>
</span><span style="font-family:"Courier New";color:black">Human Attitudes, Preferences, and Behavior > Social Behavior > resistance to change</span><span style="color:black"><br>
</span><span style="font-family:"Courier New";color:black">Human and Environmental Health > Physiological Parameters > digestive physiology<span class="apple-converted-space"> </span></span><span style="color:black"><br>
</span><span style="font-family:"Courier New";color:black">Environmental Protection > Biota > plankton</span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">which might have covered some of the needs in IPY, but I don't know what happened to these keywords. Also, note that originally, and for many years, there were only what is now called "science
keywords" but at that time was called the "GCMD Parameter Valids".</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">In terms of "lessons learned", it might be worth discussing the reasons behind the observation that "SWEET has also not been broadly embraced by Earth science data centers as a standard ontology
or vocabulary service."</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">If and when you do submit the paper to a journal, you're welcome to suggest me as a reviewer.</span><span style="font-size:9.0pt;font-family:Helvetica"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="color:black">Best wishes,<br>
SiriJodha</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in;background:white"><span style="color:black">On 5/27/21 4:07 PM, Mark Parsons via esip-semanticweb wrote:</span><o:p></o:p></p>
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<pre style="margin-left:1.0in;background:white"><span style="color:black">Dear Semanticists,</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Some of you may be interested in this ethnographic tale of the development and evolution of the GCMD keywords.</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">We would welcome any feedback on the essay, including possible journal suggestions for where it could be submitted.</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Parsons, Mark A., Duerr, Ruth, & Godøy, Øystein. (2021). The Evolution of GCMD Keywords — An instructive tale of data standards development and adoption. <a href="https://urldefense.us/v3/__https://gcc02.safelinks.protection.outlook.com/?url=http*3A*2F*2Fdoi.org*2F10.5281*2Fzenodo.4818237&data=04*7C01*7Cchristopher.s.lynnes*40nasa.gov*7C8c67afa8c03f4d05926e08d922067294*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C637578233358937034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=wYAw3E8Wew8uhIIE0C8Vj*2F0mGCHuMqc6pow4c*2FGE4BQ*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!PvBDto6Hs4WbVuu7!ZG_ls4KcStOMTL-Tl4THD3a_ohLG7_2mVFFRPqwtOrnVidXu8Xp5qlfIjnwLuu82nTZZl5s$">http://doi.org/10.5281/zenodo.4818237</a></span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Abstract </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">NASA established the Global Change Master Directory (GCMD) and supporting keywords in the early 1990s as part of implementing the GCMD through the Directory Interchange Format or DIF. The GCMD was developed to support the launch of the huge and enduring satellite-based Earth Observing System (EOS). The primary intent was to catalog EOS and related data, but the keywords have been implemented in many different systems and adopted in varying ways by many different organizations around the world. This essay provides an ethnographic examination of how the keywords have evolved and been managed and how they have been adopted over the last few decades. It illustrates how semantic approaches have evolved over time and provides insights on how standards and associated processes can be sustained and adaptable. Ongoing institutional commitment is essential, but so is transparency and technical flexibility. Understanding the different roles involved in standards creation, maintenance, and use of standards as well as the services that standards enable is also critical. It is apparent that semantic representations need to be mindful of different contexts and carefully define verbs as well nouns and categories. Understanding and representing relationships is central to interdisciplinary interoperability.</span><o:p></o:p></pre>
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<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">cheers,</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">-m. </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Mark A. Parsons</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Research Scientist</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">University of Alabama in Huntsville</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">+1 303 941 9986</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Mail: 1550 Linden Ave, Boulder, CO 80304, USA</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"><a href="https://urldefense.us/v3/__https://gcc02.safelinks.protection.outlook.com/?url=https*3A*2F*2Forcid.org*2F0000-0002-7723-0950&data=04*7C01*7Cchristopher.s.lynnes*40nasa.gov*7C8c67afa8c03f4d05926e08d922067294*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C637578233358946990*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=q08p1kSm*2FNK29PZfithjA7ivWisFWIy2WWdBjvyXOec*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUl!!PvBDto6Hs4WbVuu7!ZG_ls4KcStOMTL-Tl4THD3a_ohLG7_2mVFFRPqwtOrnVidXu8Xp5qlfIjnwLuu82Vl5K5Oo$">https://orcid.org/0000-0002-7723-0950</a></span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"> </span><o:p></o:p></pre>
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<pre style="margin-left:1.0in;background:white"><span style="color:black">_______________________________________________</span><o:p></o:p></pre>
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<pre style="margin-left:1.0in;background:white"><span style="color:black">-- </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Siri-Jodha Singh KHALSA, Ph.D., SMIEEE</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">National Snow and Ice Data Center</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">University of Colorado</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Boulder, CO 80309-0449 </span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Traditional Territories of the Arapaho, Cheyenne and Ute Nations</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black">Office: 1-303-492-1445 GV: 1-303-736-9976 EU: +420 608 720 281</span><o:p></o:p></pre>
<pre style="margin-left:1.0in;background:white"><span style="color:black"><a href="https://urldefense.us/v3/__https://gcc02.safelinks.protection.outlook.com/?url=http*3A*2F*2Forcid.org*2F0000-0001-9217-5550&data=04*7C01*7Cchristopher.s.lynnes*40nasa.gov*7C8c67afa8c03f4d05926e08d922067294*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C637578233358956946*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=vJ5s*2FigG66Hwe1hEuiFcOQlKDBvGX*2BVGGi*2FQ2PFqwTg*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!PvBDto6Hs4WbVuu7!ZG_ls4KcStOMTL-Tl4THD3a_ohLG7_2mVFFRPqwtOrnVidXu8Xp5qlfIjnwLuu827ZuYKQc$">http://orcid.org/0000-0001-9217-5550</a></span><o:p></o:p></pre>
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<pre style="margin-left:.5in;background:white;caret-color: rgb(0, 0, 0);font-variant-caps: normal;text-align:start;-webkit-text-stroke-width: 0px;word-spacing:0px"><span style="color:black">-- </span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">Siri-Jodha Singh KHALSA, Ph.D., SMIEEE</span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">National Snow and Ice Data Center</span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">University of Colorado</span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">Boulder, CO 80309-0449 </span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">Traditional Territories of the Arapaho, Cheyenne and Ute Nations</span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black">Office: 1-303-492-1445 GV: 1-303-736-9976 EU: +420 608 720 281</span><o:p></o:p></pre>
<pre style="margin-left:.5in;background:white"><span style="color:black"><a href="https://urldefense.us/v3/__https://gcc02.safelinks.protection.outlook.com/?url=http*3A*2F*2Forcid.org*2F0000-0001-9217-5550&data=04*7C01*7Cchristopher.s.lynnes*40nasa.gov*7C8c67afa8c03f4d05926e08d922067294*7C7005d45845be48ae8140d43da96dd17b*7C0*7C0*7C637578233358956946*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=vJ5s*2FigG66Hwe1hEuiFcOQlKDBvGX*2BVGGi*2FQ2PFqwTg*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!PvBDto6Hs4WbVuu7!ZG_ls4KcStOMTL-Tl4THD3a_ohLG7_2mVFFRPqwtOrnVidXu8Xp5qlfIjnwLuu827ZuYKQc$">http://orcid.org/0000-0001-9217-5550</a></span><o:p></o:p></pre>
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